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Finding the Fourth Proportional to 7,959.76, 10,976.78 and 5,269.75

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Solution

The fourth proportional to 7,959.76, 10,976.78 and 5,269.75 is: 7,267.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.76 : 10,976.78 = 5,269.75 : x
  2. Step 2: Convert to fraction form
    7,959.76/10,976.78 = 5,269.75/x
  3. Step 3: Cross multiply
    7,959.76x = 10,976.78 × 5,269.75
  4. Step 4: Simplify right side
    7,959.76x = 57,844,872.14
  5. Step 5: Solve for x
    x = 57,844,872.14/7,959.76
  6. Step 6: Final answer
    x = 7,267.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.